Mevotech CMS801255 Lateral Arm and Ball Joint Assembly - Rear Lower Forward

Mevotech CMS801255 Rear Lower Forward Control Arm

Mevotech CMS801255 is a lateral arm and ball joint assembly built for the rear lower forward position on select Subaru WRX and WRX STI models. It combines a steel arm, unitized ball joint, rubber bushing, and pre-greased construction to support consistent suspension performance in daily driving and higher-use conditions.

Key Features

• Steel construction for strength in suspension service
• Pre-greased design for easier initial service
• Unitized ball joint mounting type
• Rubber bushing included for controlled articulation
• Mounting hardware included
• Non-adjustable replacement arm for direct-position service
• Black finish

Detailed Product Overview

Mevotech Supreme Parts are engineered in-house with application-specific upgrades focused on durability and performance. This CMS801255 assembly is designed for high-usage passenger vehicles, SUVs, fleets, and working trucks, and it brings that same service-minded approach to the rear suspension of the Subaru WRX and Subaru WRX STI. The threaded stud, ball joint end, and bushing end are configured for the rear lower forward location, helping restore proper suspension geometry when the original arm is worn or damaged. This part cross-references 2CB80372 and 20250VA000 for the same application.

Vehicle Fitment

• Fits 2015-2021 Subaru WRX, rear lower forward.
• Fits 2015-2021 Subaru WRX STI, rear lower forward.

Common Problems This Part Can Address

• Rear suspension clunking from worn arm bushings or ball joint wear
• Excessive play in the rear lower forward suspension link
• Uneven tire wear caused by suspension looseness
• Imprecise rear-end handling or instability over bumps
• Corrosion-related replacement needs on the original control arm

Installation Notes and Tips

Confirm the rear lower forward position before installation and compare the original arm length and mounting points to the new part. Because this assembly is pre-greased and includes bushings and mounting hardware, installation can be more straightforward than rebuilding the original component. After replacement, inspect rear alignment and verify all fasteners are tightened to vehicle specifications.

Quality Assurance

Mevotech Supreme components are built with application-specific engineering and service-focused design details for demanding use. CMS801255 is a direct replacement-style suspension arm for confirmed Subaru WRX and Subaru WRX STI fitments, including 2015-2021 models in the rear lower forward position.